______ you eat the correct foods ______ be able to keep fit and stay healthy.
A. Only if; will you
B. Only if; you will
C. Unless; will you
D. Unless; you will
Though having lived abroad for years, many Chinese still ______ the traditional custom.
A. perform
B. possess
C. observe
D. support
导致气性坏疽的致病菌是
A. 梭状芽孢杆菌
B. 链球菌
C. 拟杆菌
D. 肠杆菌
急性肝功能衰竭的实验室检查是
A. 血小板减少
B. 转氨酶增高
C. 胆红质增高
D. 白细胞增多